Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 730 [Rate centres in NPA 730] [Dial plan for NPA 730]

NXX: 730

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
730-730 A Birds IL   224C ONVOY, LLC 978   2025-10-17   
730-730 4 Birds IL   224C ONVOY, LLC 978   2025-10-17   
730-730 5 Birds IL   224C ONVOY, LLC 978   2025-10-17   
730-730 6 Birds IL   224C ONVOY, LLC 978   2025-10-17   

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.